package com.mojianxi.blogdemo.dao;

import com.mojianxi.blogdemo.po.Blog;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @Description TODO
 * @Author:liuxiaodong
 * @Date 2019/10/11 10:13
 * @Company dyld
 */
public interface BlogRepository extends JpaRepository<Blog,Long>, JpaSpecificationExecutor<Blog> {
    @Query("select b from Blog b where b.recommend=true")
    List<Blog> findTop(Pageable pageable);
    @Query("select b from Blog b where b.title like ?1 or b.content like ?1")
    Page<Blog> findByQuery(String key,Pageable pageable);
    @Transactional
    @Modifying
    @Query("update Blog b set b.views = b.views+1 where b.id=?1")
    int updateViews(Long id);
    @Query("select function('date_format',b.updateTime,'%Y') as year from Blog b group by function('date_format',b.updateTime,'%Y') order by  year desc ")
    List<String> findGroupYear();
    @Query("select b from Blog b where function('date_format',b.updateTime,'%Y')=?1 ")
    List<Blog> findByYear(String year);
}
